abstract: This talk will be divided into two parts. In the first part, we will explain the general formalism for cohomogeneity one Ricci solitons and write down the resulting system of ordinary differential equations. In the second part, we will talk about a generalisation of the paper "The initial value problem for cohomogeneity one Einstein metrics" by J.-H. Eschenburg and McKenzie Y. Wang to the gradient Ricci solitons case.